Millionaire Mystery Box (Big Time Gaming) - Slot Review

Millionaire Mystery Box slot machine by Big Time Gaming
Logo Big Time Gaming
Mar 27, 2024
Volatility: High
RTP: 96.642%
View casinos
Pros
  • extra spins with up to 50x multiplier
  • scatter wins
  • several features
Cons
  • difficult to trigger features
  • basic artwork
  • medium volatility
  • unexciting gameplay
May 21, 2024
Written by Philippe
RTP96.36%
VolatilityMedium
Paylines243
Max payout22,000x

Can you answer the mystery?

Who Wants To Be A Millionaire logo

We all know Who Wants To Be A Millionaire, the show where contestants answer increasingly difficult multiple-choice questions to move up a ladder of cash prizes. If you’re a fan of the show, you’ll be disappointed to know that the Millionaire Mystery Box online slot we tested for you feels like watching a boring episode in which the contestants don’t get past the first few questions.

The game follows in the steps of the original Who Wants To Be A Millionaire slot. This latest release tries to stand out with a lot of features. These are supposed to be inspired by the internationally-acclaimed TV show. But it doesn’t take long to figure out that there is nothing really new about these features aside from their design.

This slot is packed with bonus features to shake up the gameplay: multiplier wilds, mystery symbols, scatter wins, free spins and a gamble feature.

Theme and design

The slot’s highest-paying symbols are a diamond and other colourful geometric shapes, forming winning combinations with as little as two symbols on a pay line. The low-paying symbols are the standard 9, 10, J, Q, K and A, stylised in the TV show’s signature font.

Millionaire Mystery Box screenshot mobile

The game show’s theme song and its overall design create an immersive experience that feels like you’re stepping through the television screen and into the television studio.

Millionaire Mystery Box gameplay

At the level of gameplay, the only point in common between the Millionaire Mystery Box slot and the TV show is the way in which the progressive multiplier builds up as you work your way up the ladder.

This online slot’s theoretical return to player (RTP) is 96.64%, which is mid-range. It has a medium volatility and a bet range of  £0.10-£40. So it’s a good choice if you want to have fun simulating the experience of Who Wants To Be A Millionaire and play for a long time at a lower bet level. But bigger wins are very rare and require taking higher risks.

Game features

Millionaire Mystery Box slot features

Multiplier wilds

The wild symbol may replace any other symbol except for the scatter. Any winning paylines you create with the wilds has a 2x multiplier applied to the prize amount.

Mystery Box

The Mystery Box symbol can appear anywhere on the second, third and four reels. At the end of the spin, it opens up to reveal a random symbol that can create unexpected winning combinations.

Ladder Gamble Feature

The Ladder Gamble Feature is a multi-stage double-or nothing game. As long as you keep winning, you can play up to five rounds.

Extra spins with progressive multipliers

The extra spins game is similar to a free spins feature. This is the only element of the game that is really true to the spirit of Who Wants To Be A Millionaire.

The round starts when you get at least three scatter symbols on the reels. The multiplier ladder appears, displaying 12 rungs, and getting an additional 1, 2 or 3 scatter symbols will activate the bonuses on the first, second or third rung, respectively.

The effects of the scatter symbol are cumulative, with multipliers of up to 50x.

ScatterMultiplierExtra spin
1150x3
1030x1
915x1
812x3
710x1
68x1
57x1
46x3
35x1
24x1
13x1

Where to play at online casinos

We love BTG games, and we want to help you find the best casino sites in which to enjoy their games.

We’ve come up with the top three best online casinos that offer BTG slots. We’ve tested all of them for the quality of their games, welcome bonuses and customer support services.

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All the casinos we recommend are licensed by the United Kingdom Gambling Commission (UKGC), so you can be sure they’re fair and safe to play.

Slots inspired by famous TV Game Shows

Step into the captivating universe of TV Game Show adaptations at LadyLucks Casino, where we present an array of exhilarating games that will transport you to the heart of the action!

If you’re a trivia enthusiast, Jeopardy is the game for you. Test your knowledge across various categories and experience the excitement of this classic TV Game Show adaptation!

For an electrifying gaming encounter, Wheel Of Fortune Ultra 5 Reels is a must-try. With its five-reel setup and thrilling bonuses, this adaptation promises non-stop excitement!

And last but not least, Deal or No Deal Slingo merges the best of Slingo and the tension-filled decision-making from the popular TV Game Show. Will you accept the banker’s offer, or will you take the risk for greater rewards?

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Who Wants To Be A Millionaire Mystery Box: the verdict

If you like Who Wants To Be A Millionaire for the high-stakes all-or-nothing wins, and if you like Big Time Gaming’s penchant for high-volatility slots, then this is not the game for you.

Millionaire Mystery Box is a long way away from BTG’s revolutionary Megaways™ mechanics. This game has medium volatility and a traditional format of 5 reels and 3 rows, with maximum wins of 22,000x the bet.

It feels like the developer hoped that the brand of Who Wants To Be A Millionaire would be enough to draw fans of the TV show. But is this enough to keep them interested? I seriously doubt it. Aside from the ladder of free spins and multipliers that accumulate in a way that’s similar to how contestants win by answering questions, the only connection between the slot and the television show is purely cosmetic.

Common questions about Millionaire Mystery Box
keyboard_arrow_right
What is Millionaire Mystery Box?
Millionaire Mystery Box is a mobile slot inspired by the hit TV show “Who Wants To Be A Millionaire”. LadyLucks has a detailed review and a list of the best casinos to play for real money.
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Where can I play Millionaire Mystery Box?
Millionaire Mystery Box is available at BTG casinos. LadyLucks has a list of the best online casinos licensed by the UK Gambling Commission, with exclusive welcome bonuses to register.
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Is Millionaire Mystery Box available to play on mobile?
Yes! The game is mobile-optimised, so you can play on any Android or iOS (iPhone and iPad) device. Visit LadyLucks to see the best mobile casinos in which to play.
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What is the maximum win on Millionaire Mystery Box?
The max win is 22,000x your wager. Considering that the slot has a medium volatility, it’s better to avoid playing at the maximum bet levels.

🔍 Where to play the Millionaire Mystery Box slot

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Millionaire Mystery Box slot machine by Big Time Gaming

Millionaire Mystery Box

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